Brightwell Super C User manual

x 6 Max
B854 Issue 1.5
1.5 Ltr
Max
Pouch Filling - Super C
R

D&D- REPORTS
DATE: 02 MAY 2002
TO: SUPERC POUCH CUSTOMERS
FROM: BRIGHTWELL DISPENSERS (PM102)
RE: DROP HEIGHTS FOR SUPERC V.2 POUCH (INTRODUCED 03/2002)
In order to perform tests to assess the drop height survivability of the V.2 SuperC pouch, in
excess of 200 pouches were made and tested. Although only the first drop of a pouch is truly
representative of the pouches strength, all of the pouches were dropped more than once (on
average approximately three times).
The pouches were dropped from varying heights onto all sides.
The majority of the tests were performed with the pouches filled with 1.5 litres of water, as it
was quickly established that filling the pouch with 1.75 litres significantly reduced the
survivability of the pouch.
All of the tests were performed with all of the air removed from the pouch, and onto smooth
concrete.
The pouch is strongest if it is dropped onto its base (as it would be if it were being carried
and slipped from the operators hand). When dropped in this manner, the pouch was found to
be able to survive drop heights in excess of 6ft.
When dropped from 4ft onto any of its five sides (i.e. the base & four vertical sides), the
pouch displayed a 100% pass rate.
By making the pouch rotate as it fell, it was discovered that there is one particular angle at
which the pouch can impact the ground and be forced to burst. This can happen if the pouch
falls onto one of its gusset (narrower) sides, at an angle of approximately 200, with the
weldspout end hitting the ground first. By dropping the pouch in such a manner from 4ft, a
10% failure rate has been displayed. This failure rate will increase as the drop height
increases.
If the pouch falls onto its head (weldspout) this can be forced to bend round into the pouch. If
this happens, then the sharp leading edge of the weldspout can puncture the pouch. The
tooling for the weldspouts is being urgently modified to rectify this. Once the weldspout has
been modified to remove the sharp corners (which has been tested), this face of the pouch
will perform as per the other five.
The pouches filled with 1.75 litres of water displayed a 100% pass rate when dropped from
4ft onto their base, however they showed weakness when dropped onto their gusset
(narrower) sides. We would therefore recommend that the volume of product in the pouch
does not exceed 1.5 litres.
Production will be very carefully monitored (intensely, in the early stages), to ensure that the
new improved V2 pouches continue to deliver this improved performance to our customers.